House of Mystery River Access

48.3848° N, 114.1186° W
Vehicle accessible bar Packed dirt pebble bar
House of Mystery
360° capture coming
GSV coverage on US-2 at the access turnoff, checked 2026-07-23. Use official Maps Embed API iframe (free); cannot rehost tiles per Google ToS. Mapillary CC-licensed 360 worth checking (needs free token) if we want it in our own viewer.
Audio description

A narrated walk-through of this site: the ramp, the gaps, the surfaces, and the hazards, read from the survey.

Read the transcript
House of Mystery, on the main stem Flathead of the Flathead.

From the intersection of MT 206 and Highway 2, travel east for 2.1 miles. Turn left on the gravel drive immediately after the Glacier Ziplines property.

The parking area is packed dirt.

There is no designated accessible parking.

The Flathead Rivers Alliance has not published measured survey data for this site yet, so the details that follow come from the site description rather than from field measurements.

The launch itself is vehicle accessible bar packed dirt, pebble bar.

What to watch for, in the survey crew's own words:

Launch washes out at high water, making put-ins and take-outs dynamic and challenging.

Site is often extremely muddy after periods of rain.

There are no facilities at this site.

This site has not been photographed in 360 yet, so there is no immersive imagery to accompany this description.

Conditions on the Three Forks change quickly. Check the gauge the morning you float.
Today on the Middle Fork
1,740cfs → holding
90% of the 85-year median for July 30
72° Clear
Wind 2 mph NW
Tomorrow
86° 63°
USGS 12358500 NR WEST GLACIER · Weather Essex

The site

This undeveloped access approximately 1 R.M. downstream from the confluence for the main Flathead River is used by recreators floating the lower miles of the Wild and Scenic Middle Fork or the undesignated stretch of the South Fork below the Hungry Horse Dam. A steep and heavily used gravel road makes multiple switchbacks down to an eroded beach launch.

Access concerns

Recorded verbatim by the FRA field crew

  • Launch washes out at high water, making put-ins and take-outs dynamic and challenging.

  • Site is often extremely muddy after periods of rain.

Terrain360 Lens · RAPG site v2

Access-site lens

FRA access sheet · Jul 2026

Launch profile

FRA access description
Vehicle accessible bar Packed dirt, pebble bar
Kayaks + canoes
Good
Paddleboards
Good
Carry terrain
Flat unpaved

Safety + condition

Safety interpretation
Fair
Overall condition
Fair
Access hazards
Steep banks · Unstable footing · Submerged hazards likely
Water obstacles
None observed in the source
Deferred maintenance signal
Observed

Accessibility observations

Designated accessible parking
None
Route shown in sheet
Not observed
Route obstacles
Steep grades, rough surface
Observed barriers
Steep grades, rough surfaces
Accessible water feature
Not observed

Visitor management

Parking estimate
Not assessable from the source imagery
Simultaneous launch capacity
Single
Launch queue evidence
None
Designated camping indicated
Not assessable from the source imagery
Registration infrastructure
None identified in the source sheet

Experience indicators

Setting
Semi primitive
Recreation character
Lightly managed
Development in view
None
Social trails
Isolated
Informal campsite evidence
Not observed
Use-conflict evidence
None observed in the source

Recreation profile

Observed recreation
Paddling, none observed
Water skill interpretation
Varies by conditions
Physical ability interpretation
Moderate
Wear patterns
Moderate
Heavy-use signals
Bare soil, rutting
Privacy
Secluded

Curated RAPG fields are interpreted from the FRA access sheet and its photographs. Conditions may extend beyond the photographed views. FRA’s field measurements in the Measured access card remain the authority for access type, grades, widths, surfaces, gaps, and accessible parking.

Photos

Field photography Terrain360, July 2026 · site photos courtesy Flathead Rivers Alliance

Getting there

From the intersection of MT Highway 206 and US Highway 2, travel east for 2.1 miles. Turn left on the gravel drive immediately after the Glacier Ziplines property.

Open in maps
Measured access FRA field survey

Site statistics currently unavailable FRA adds measurements as staff and volunteers complete them.

View the survey sheet
Parking + facilities No facilities Packed dirt parking No designated accessible parking
Middle Fork · where this site sits River flows this way →
5,324 ft RM 97.4 · headwaters 2,295 ft of drop · 23.5 ft per mile average · whitewater reach 3,029 ft confluence

Elevation sampled from USGS 10m along the Wild & Scenic centerline. Hover or focus a site to see the panorama closest to the water.

Upstream WILD · GREAT BEAR WILDERNESS Downstream Confluence

The Three Forks flow through the homelands of the Séliš, Ql̓ispé, and Ktunaxa peoples, frequented by the Amskapi Piikani. About the homelands